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Número de publicaciónUS20080140004 A1
Tipo de publicaciónSolicitud
Número de solicitudUS 11/943,345
Fecha de publicación12 Jun 2008
Fecha de presentación20 Nov 2007
Fecha de prioridad22 Nov 2006
También publicado comoCN101573153A, CN101573153B, EP2083885A2, EP2083885A4, EP2083885B1, US9220871, WO2008064328A2, WO2008064328A3
Número de publicación11943345, 943345, US 2008/0140004 A1, US 2008/140004 A1, US 20080140004 A1, US 20080140004A1, US 2008140004 A1, US 2008140004A1, US-A1-20080140004, US-A1-2008140004, US2008/0140004A1, US2008/140004A1, US20080140004 A1, US20080140004A1, US2008140004 A1, US2008140004A1
InventoresJohan Fredrik Thorne, Lars-Ake Lennart Larsson, Kristoffer Glowacki, Jorgen Bruno Hager
Cesionario originalBecton, Dickinson And Company
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Needle shielding pawl structures
US 20080140004 A1
Resumen
An extravascular system is provided which includes a catheter assembly and a needle assembly. The needle assembly includes a needle cap containing a needle shield. The needle shield may be a V-clip having a pawl. The pawl may communicate with an extension on the needle shield by forming a bend between the pawl and the extension. The bend may include at least one dent, and the dent may be formed within the center of the bend. Alternatively, the bend may include a plurality of dents. The plurality of dents may be placed at various locations over the pawl width. The pawl may be folded back onto itself. Indeed, the pawl may be folded back on itself to form essentially a pawl of double thickness. In addition, the pawl may be constructed with a bend of various angles. The angle of the bend between the pawl and the extension may be less than 90°. The angle may be in the range of from about 90° and about 70°. The pawl may also include a corrugated design or structure.
Imágenes(9)
Previous page
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Reclamaciones(20)
1. An extravascular system for accessing the vasculature of a patient, comprising:
a catheter adapter defining a groove;
a needle disposed within the catheter adapter; and
a needle tip shield assembly having a needle cap, the needle cap having a needle shield, and the needle shield having a pawl;
wherein the pawl engages with the groove of the catheter adapter to secure the needle tip shield to the catheter adapter; and
wherein the pawl avoids premature separation from the groove.
2. The system of claim 1, wherein the needle shield is a V-clip.
3. The system of claim 2, wherein the pawl communicates with an extension on the needle shield by forming a bend between the pawl and the extension.
4. The system of claim 3, wherein the bend includes at least one dent.
5. The system of claim 4, wherein the dent is formed within the center of the bend.
6. The system of claim 2, wherein the pawl is folded back onto itself.
7. The system of claim 3, wherein angle of the bend between the pawl and the extension is in the range of from about 70° to about 90°.
8. The system of claim 2, wherein the pawl includes a corrugated shape.
9. A method of engaging a vascular access device to another vascular access device within an extravascular system, comprising:
providing a catheter adapter defining a groove;
providing a needle disposed within the catheter adapter;
providing a needle tip shield assembly having a needle cap, the needle cap having a needle shield, and the needle shield having a pawl;
reinforcing the pawl; and
securing the needle tip shield to the catheter adapter by engaging the pawl with the groove of the catheter adapter;
such that premature separation of the pawl from the groove is prevented.
10. The method of claim 9, wherein the needle shield is a V-clip.
11. The method of claim 10, further comprising providing an extension on the needle shield and forming a bend between the pawl and the extension.
12. The method of claim 11, further comprising denting the bend.
13. The method of claim 11, further comprising forming at least one dent in the bend.
14. The method of claim 12, further comprising denting the center of the bend.
15. The method of claim 11, further comprising folding the pawl back onto itself.
16. The method of claim 11, further comprising forming the bend between the pawl and the extension at an angle that is in the range of from about 70° to about 90°.
17. The method of claim 10, further comprising bending the pawl in a corrugated configuration.
18. The method of claim 10, further comprising forming the pawl into a corrugated configuration.
19. An extravascular system for accessing the vasculature of a patient, comprising:
a catheter adapter having a first means for engaging;
a needle disposed within the catheter adapter; and
a needle tip shield assembly having a needle cap, the needle cap having a needle shield, and the needle shield having a second means for engaging;
wherein the second means for engaging engages with the first means for engaging to secure the needle tip shield to the catheter adapter; and
wherein the reinforced second means for engaging avoids premature separation from the first means for engaging.
20. The extravascular system of claim 19 wherein the second means is reinforced.
Descripción
    RELATED APPLICATIONS
  • [0001]
    This application claims the benefit of U.S. Provisional Application No. 60/867,046, filed Nov. 22, 2006, entitled NEEDLE TIP SHIELD, which is incorporated herein by reference.
  • BACKGROUND OF THE INVENTION
  • [0002]
    This invention relates generally to vascular access devices and methods, including catheter assemblies and devices used with catheter assemblies. Generally, vascular access devices are used for communicating fluid with the vascular system of patients. For example, catheters are used for infusing fluid, such as normal saline solution, various medicaments, and total parenteral nutrition, into a patient, withdrawing blood from a patient, or monitoring various parameters of the patient's vascular system.
  • [0003]
    A common type of intravenous (IV) catheter is an over-the-needle peripheral IV catheter. As its name implies, an over-the-needle catheter is mounted over an introducer needle having a sharp distal tip. At least the inner surface of the distal portion of the catheter tightly engages the outer surface of the needle to prevent peelback of the catheter and thus facilitate insertion of the catheter into the blood vessel. The catheter and the introducer needle are assembled so that the distal tip of the introducer needle extends beyond the distal tip of the catheter with the bevel of the needle facing up away from the patient's skin. The catheter and introducer needle are generally inserted at a shallow angle through the patient's skin into a blood vessel.
  • [0004]
    In order to verify proper placement of the needle and/or catheter in the blood vessel, the clinician generally confirms that there is “flashback” of blood in a flashback chamber of the catheter assembly. Once proper placement of the catheter into the blood vessel is confirmed, the clinician may apply pressure to the blood vessel by pressing down on the patient's skin over the blood vessel distal of the introducer needle and the catheter. This finger pressure occludes the vessel, minimizing further blood flow through the introducer needle and the catheter.
  • [0005]
    The clinician may then withdraw the introducer needle from the catheter. The introducer needle may be withdrawn into a needle tip shield device that covers the needle tip and prevents accidental needle sticks. In general, a needle shield includes a housing, a sleeve, or other similar device that is designed such that when the needle is withdrawn from the patient, the needle tip will be trapped/captured within the needle tip shield. The purpose of these needle tip shield devices is to house the tip of the needle in a secure location, thereby avoiding the possibility of needle sticks after the needle and needle shield device are separated from the catheter, which is left in place to provide intravenous access to the patient.
  • [0006]
    Various systems and methods are needed to provide needle tip shields that optimally secure to and separate from the remainder of a catheter assembly and provide adequate protection from the tip of a needle during and after needle use.
  • BRIEF SUMMARY OF THE INVENTION
  • [0007]
    The present invention has been developed in response to problems and needs in the art that have not yet been fully resolved by currently available vascular access systems and methods. Thus, these systems and methods are developed to provide more efficient vascular access systems and methods capable of ensuring proper needle tip shield function.
  • [0008]
    An extravascular system for accessing the vasculature of a patient may include a catheter, a needle disposed within the catheter, and a needle tip shield assembly. The catheter may include a groove and/or other means of attaching to another vascular access device within the extravascular system. The needle may be disposed within the catheter. The needle tip shield assembly may include a needle cap, the needle cap may include a needle shield, and the needle shield may include a pawl. The pawl may be reinforced and engage with the groove or other means of attachment of the catheter to secure the needle tip shield to the catheter. The reinforced pawl avoids, limits, and/or minimizes premature separation from the groove.
  • [0009]
    The needle shield may be a V-clip. The pawl may communicate with an extension on the needle shield by forming a bend between the pawl and the extension. The bend may include at least one dent, and the dent may be formed within the center of the bend. Alternatively, the bend may include a plurality of dents. The plurality of dents may be placed at various locations over the pawl width. The pawl may be folded back onto itself. Indeed, the pawl may be folded back on itself to form essentially a pawl of double thickness.
  • [0010]
    In addition, the pawl may be constructed with a bend of various angles. The angle of the bend between the pawl and the extension may be less than 90°. The angle may be in the range of from about 90° and about 70°. The pawl may also include a corrugated design or structure.
  • [0011]
    A method of engaging a vascular access device to another vascular access device within an extravascular system may include providing a catheter, providing a needle, and providing a needle tip shield assembly. The step of providing a catheter may include providing a catheter defining a groove or other means of attaching to another vascular access device. The step of providing a needle may include providing a needle disposed within the catheter. The step of providing a needle tip shield assembly may include providing a needle tip shield assembly having a needle cap where the needle cap may have a needle shield and the needle shield may have a pawl. The method may also include reinforcing the pawl, securing the needle tip shield to the catheter by engaging the pawl with the groove of the catheter, and/or avoiding premature separation of the pawl from the groove. The needle shield may be a V-clip.
  • [0012]
    The method may also include providing an extension on the needle shield and forming a bend between the pawl and the extension. The method may also include denting the bend, forming at least one dent in the bend, denting the center of the bend, folding the pawl back onto itself, forming the bend between the pawl and the extension at an angle that is less than 90 degrees, such as in the range of from about 90 degrees to about 70 degrees, bending the pawl in a corrugated design, and/or forming the pawl into a corrugated design.
  • [0013]
    An extravascular system for accessing the vasculature of a patient may include a catheter having a first means for engaging, a needle disposed within the catheter, and a needle tip shield assembly. The needle tip shield assembly may have a needle cap, the needle cap may have a needle shield, and the needle shield may have a second means for engaging. The second means for engaging may be reinforced and may engage with the first means for engaging to secure the needle tip shield to the catheter. The reinforced second means for engaging may avoid premature separation from the first means for engaging.
  • [0014]
    These and other features and advantages of the present invention may be incorporated into certain embodiments of the invention and will become more fully apparent from the following description and appended claims, or may be learned by the practice of the invention as set forth hereinafter. The present invention does not require that all the advantageous features and all the advantages described herein be incorporated into every embodiment of the invention.
  • BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
  • [0015]
    In order that the manner in which the above-recited and other features and advantages of the invention are obtained will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. These drawings depict only typical embodiments of the invention and are not therefore to be considered to limit the scope of the invention.
  • [0016]
    FIG. 1 is a perspective view of a extravascular system.
  • [0017]
    FIG. 2 is an exploded view of the extravascular system of FIG. 1.
  • [0018]
    FIG. 3 is a perspective view of a V-clip shield with a clip housing cover.
  • [0019]
    FIG. 4 is a perspective view of a V-clip shield.
  • [0020]
    FIG. 5A is a perspective view of a catheter adapter having a groove.
  • [0021]
    FIG. 5B is a cross section view of a V-clip shield pawl separating from a catheter groove.
  • [0022]
    FIG. 6 is a top perspective view of a pawl having a dent.
  • [0023]
    FIG. 7 is a bottom perspective view of the pawl of FIG. 6.
  • [0024]
    FIG. 8 is a bottom perspective view of a pawl folded inward at an angle less than 90°.
  • [0025]
    FIG. 9 is bottom perspective view of a pawl having a corrugated design.
  • [0026]
    FIG. 10 is a bottom perspective view of a pawl folded back onto itself.
  • DETAILED DESCRIPTION OF THE INVENTION
  • [0027]
    The presently preferred embodiments of the present invention will be best understood by reference to the drawings, wherein like reference numbers indicate identical or functionally similar elements. It will be readily understood that the components of the present invention, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations. Thus, the following more detailed description, as represented in the figures, is not intended to limit the scope of the invention as claimed, but is merely representative of presently preferred embodiments of the invention.
  • [0028]
    Referring to FIG. 1, a perspective view illustrates an example of an extravascular system 10 of multiple extravascular systems. In this example the extravascular system 10 includes a catheter assembly 12 and a needle assembly 20. The catheter assembly 12 includes a vascular access device, such as a catheter 14, partially housed within a catheter adapter 18. Also illustrated in FIG. 1 is a protection cap 22 positioned above the catheter adapter 18. The protection cap 22 may cover an access port which provides access into the catheter 14.
  • [0029]
    Referring now to FIGS. 1 and 2, the extravascular system 10 also includes a needle assembly 20. The needle assembly includes a needle cap 24 and a needle hub 26. As can be seen by comparing FIGS. 1 and 2, the needle cap 24 and the tether 36 may be adapted to fit at least substantially inside the needle hub 26 when the needle assembly 20 is in the pre-use configuration. The needle assembly 20 may include additional parts or components adapted to provide the needle assembly 20 with the desired functionality. Similarly, the catheter assembly 12 may include additional or alternative parts and subcomponents depending on the configuration of the catheter assembly 12 and its intended usage.
  • [0030]
    The needle cap 24 is configured such that it will contain the needle tip 28 when the needle 30 is removed from the catheter 14. The needle assembly 20 is securely attached to the catheter adapter 18 thereby providing for manipulation of the needle 30 and placement of the catheter 14 within the vasculature of a patient. The needle assembly 20 may include grips 32 which allow for more secure gripping of the needle assembly 20 and maneuvering of the needle 30.
  • [0031]
    Referring now to FIG. 2, the extravascular system 10 is illustrated in an exploded view. As with FIG. 1, the catheter assembly 12 and needle assembly 20 are shown. As discussed above, the catheter assembly 12 includes a catheter 14 for placement within the vascular system of a patient. The catheter adapter 18 is configured such that the catheter 14 can be attached to further medical devices or tubing, such as for the administration of fluids to the patient. In that regard, the illustrated catheter assembly 12 also includes a protection cap 22 which covers an access port which provides further access to the catheter 14.
  • [0032]
    Also illustrated in FIG. 2 is the needle assembly 20 in a position in which the needle cap 24 has been fully separated from the catheter adapter 18. As mentioned above, the needle assembly 20 as illustrated includes grips 32 for use in retracting and manipulating the position of the needle 30.
  • [0033]
    Extending between the needle cap 24 and the needle hub 26 is a tether 36. The length of the tether 36 is selected such that when the needle cap 24 is maximally deployed from the needle hub 26 and the needle tip 28 of needle 30 is securely housed within the needle cap 24, the tether 36 is fully extended thereby preventing a separation of the needle cap 24 from the needle hub 26. Additionally, when the tether 36 is fully extended needle cap 24 is unable to be removed from the needle tip 28 thereby ensuring that the needle tip 28 remains safely contained within the needle cap 24. The tether 36 may be folded in an accordion configuration, may be straight, or take any other desired configuration.
  • [0034]
    As illustrated in FIG. 2, the needle tip 28 is secured within the needle cap 24. The tether 36 is in the extended position between the needle cap 24 and the needle hub 26. Thus, the needle 30 is prevented from being pulled out of the needle cap 24. The interior of the needle cap 24 also cooperates with structures on the needle (not shown) and the V-clip 58 to prevent the needle from moving forward out of the needle cap 24. The needle shield and/or V-clip 58 is illustrated in FIG. 2 in a contracted form; also illustrated is the clip housing cover 60, both of which are described in further detail below.
  • [0035]
    Referring now to FIGS. 3 and 4, an example of a shield 58 for use with a needle cap 24 within an extravascular system 10 is shown in perspective view. The shield 58 is a V-clip having a first arm 62 and a second arm 64. The first arm 62 includes an extension 66 forming a pawl 68 at the end of the extension 66. The first arm 62 and/or the second arm 64 may also include a needle tip shield flap 70 capable of halting the advancement of the needle tip 28 after the V-clip 58 is engaged. The shield flap 70 is used to prevent the reemergence of the sharp needle tip 28 from the needle cap 24 after the needle 30 has been shielded by the cap 24.
  • [0036]
    The pawl 68 is formed of a metal that is bent at a primarily 90 degree bend from the extension 66. However, the pawl 68 may be bent at any other desired angle. For example, bends in the range of from about 90 degrees to about 70 degrees are presently preferred. The pawl 68 on the V-clip 58 serves to engage a crescent-shaped groove 72 on the catheter adapter 18 (see FIG. 5A). The pawl 68 engages the groove 72 to prevent the needle cap 24 from separating from the catheter adapter 18 until the needle 30 is withdrawn far enough to activate the V-clip 58. FIG. 5B illustrates a pawl 68 being separated from the groove 72.
  • [0037]
    Returning to FIGS. 3 and 4, when the V-clip 58 is activated, the first arm 62 will, under the spring force of an elbow 74, separate from the second arm 64. As the first arm 62 separates from the second arm 64, the pawl 68 will move from a first position to a second position. When the pawl 68 is in its first position, it is engaged with the groove 72 on the catheter adapter 18. After the pawl 68 moves from its first position to its second position, the pawl moves from engagement with the groove 72 to a position that is out of engagement with the groove 72.
  • [0038]
    In order to prevent premature disengagement of the pawl 68 from the groove 72, the pawl 68 must be of sufficient strength to avoid any bending, movement, shifting, or other action that would cause the V-clip 58 to separate from the catheter adapter 18 before the needle 30 has advanced far enough to activate or engage the V-clip 58. Various features and methods may be used to strengthen the pawl 68 and its relationship to the extension 66. Further, depending on the environment of vascular access devices and features thereof in which a pawl 68 is used, the pawl 68 may need to meet certain design requirements including size, shape, orientation, materials, and other features that would require additional pawl 68 strength.
  • [0039]
    Merely providing a pawl 68 with a thinner material will increase the likelihood that the pawl 68 will decouple from the groove 72. To prevent premature decoupling, one or more features may be included to strengthen the pawl 68. Such a feature may, for example, include decreasing the space between the V-clip housing cover 60 and the extension 66 so that the pawl 68 cannot rise to a height capable of disengaging the groove 72 (see FIG. 5B). Such feature may additionally or alternatively, for example, include a dent in the bend from the extension 66 or V-clip arm to the pawl 68.
  • [0040]
    Referring to FIG. 6, the pawl 68 of the V-clip 58 is shown having a dent 76 formed within the bend 78 between the pawl 68 and the extension 66. The bend 78 increases pawl 68 strength and prevents the pawl 68 from bending when separation force is placed between the pawl 68 and the groove 72, thus increasing the premature separation force required. By incorporating a dent 76 in the bend 78, a higher premature separation force is required, thus ensuring that the needle cap 24 does not separate prematurely from the catheter adapter 18 and thereby expose the clinician to an unprotected needle tip 28. The V-clip illustrated in FIG. 6 has a single dent 76. However, any number or configuration of dents 76 may be included and positioned at any desired location over the width of the pawl 68.
  • [0041]
    The extension 66 also includes a bend 80 along the length of the extension 66 to provide increased rigidity to the extension 66. Increased rigidity in the extension 66 will also help the pawl 68 avoid raising within the groove 72, resulting in premature decoupling.
  • [0042]
    Referring to FIG. 7, a bottom view of the pawl 68 reveals the underside of the dent 76 formed within the bend 78 between the pawl 68 and the extension 66 on the first arm. The dent 76 may be altered, supported, and/or replaced by any other feature capable of strengthening the bend 78 between the pawl 68 and the extension 66. Such alteration, replacement, or optimization may include modifying the parameters of depth, length, width, number of dents, and orientation of dents and/or other features. For example, a pawl 68 may fold back onto itself (see FIG. 10 and discussion below).
  • [0043]
    Referring to FIG. 8, a pawl 68 may fold in a direction towards the extension 66, causing the bend 78 to be formed at an angle less than 90 degrees. For example the bend may have an angle in the range of from about 70 degrees to about 90 degrees.
  • [0044]
    As another example, and as shown in FIG. 9, a pawl 68 with a corrugated design may also result in the same strength increase seen with the dent 76. Such a corrugated design may provide equivalent strength as multiple dents being formed within the bend 78. By applying a corrugated shape it is possible increase the strength of the pawl and resists premature decoupling. A further advantage to the corrugated shape is to minimize axial movement of pawl in the space between the ridge on the needle cap and the groove edge on the catheter adapter. The corrugated shape may also provide a “spring” action keeping the needle cap 24 firmly in place in relation to the catheter hub 18. Finally, the corrugated shape helps prevent the risk of the pawl being stopped by burrs and sharp edges in the groove during opening of the V-clip 58.
  • [0045]
    By including a dent 76 or other similar strength-providing features, the bending strength of the pawl 68 is increased. This increase in bending strength of the pawl 68 is accomplished by lowering the point of bending to the end of the dent 76 or other feature (such as a brace). By lowering or otherwise moving the point of bending to the end of the dent 76 or other feature, a higher resistance to bending is created in the dented region. The location, length, shape, and/or size of the pawl 68 may be increased and/or decreased in order to adjust the premature separation force between the pawl 68 and the groove 72. For example, the dent 76 may preferably be placed in the center of the bend 78 to avoid torsional bending of the pawl 68 under stress.
  • [0046]
    The pawl 68 and/or its surrounding environment may also be modified in order to adjust the amount of play between the groove 72 of the catheter adapter 18 and the environment within the needle cap 24, to ensure that there is minimum play between the needle cap 24 and the catheter adapter 18 (such as the space shown in FIG. 5B between the extension 66 and the housing cover). By minimizing play, the premature separation force between the groove 72 and the pawl 68 will be maximized. In addition, the length or width of the portion of the pawl 68 which comes into contact with structure within or near the groove 72 is also important in controlling the premature separation force between the groove 72 and the pawl 68.
  • [0047]
    In addition, it may be desirable to expand the size of the pawl 68 in order to increase the contact area with the groove 26 on the catheter hub 18. This is another manner in which the contact area with the groove can be optimized which in turn resists premature decoupling. Further, the lower edge of the pawl can be optimized as required for particular catheter configurations to optimize the contact area for increased resistance to decoupling.
  • [0048]
    Finally, referring now to FIG. 10, a pawl 68 may be folded back onto itself. Indeed, the pawl 68 may be folded back on itself to form essentially a pawl 68 of double thickness. The pawl 68 of FIG. 10 may be accomplished by creating a template for a pawl that is twice the desired length of the final pawl 68 so that when the extended pawl is folded back onto itself a pawl 68 of double thickness is created and the pawl 68 is of a desired final length.
  • [0049]
    The present invention may be embodied in other specific forms without departing from its structures, methods, or other essential characteristics as broadly described herein and claimed hereinafter. The described embodiments are to be considered in all respects only as illustrative, and not restrictive. The scope of the invention is, therefore, indicated by the appended claims, rather than by the foregoing description. All changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US4929241 *5 Ago 198829 May 1990Kulli John CMedical needle puncture guard
US4952207 *11 Jul 198828 Ago 1990Critikon, Inc.I.V. catheter with self-locating needle guard
US4970998 *26 May 198920 Nov 1990Eaton Indiana, Inc.Offset starter pawl
US4978344 *27 Dic 198818 Dic 1990Dombrowski Mitchell PNeedle and catheter assembly
US5051109 *16 Jul 199024 Sep 1991Simon Alexander ZProtector for catheter needle
US5053017 *28 Feb 19901 Oct 1991Chamuel Steven RHypodermic needle safety clip
US5135504 *17 Jul 19894 Ago 1992Mclees Donald JNeedle tip guard
US5215528 *7 Feb 19921 Jun 1993Becton, Dickinson And CompanyCatheter introducer assembly including needle tip shield
US5279591 *8 Sep 199218 Ene 1994Simon Alexander ZProtector for needle catheter
US5322517 *1 Feb 199021 Jun 1994Sero-Guard CorporationDisposable automatic hypodermic needle guard
US5328482 *20 Mar 199112 Jul 1994Sero-Guard CorporationCatheter with automatic needle guard
US5419766 *28 Sep 199330 May 1995Critikon, Inc.Catheter with stick protection
US5458658 *6 May 199417 Oct 1995Sero-Guard CorporationPositive locking needle-mounted needle guard for needle supported catheters
US5533974 *23 Ene 19959 Jul 1996Devon Industries, Inc.Locking safety cover for sharp instruments
US5562633 *22 Sep 19928 Oct 1996Sterimatic Holdings LimitedCatheter placement units
US5662610 *7 Jun 19952 Sep 1997Sircom; Richard C.Automatic needle guard tip protection
US5697907 *19 Ene 199616 Dic 1997Graphic Controls CorporationSafety catheter
US5718688 *18 Ago 199517 Feb 1998Sterimatic Holdings LimitedCatheter placement units
US5823997 *10 Sep 199720 Oct 1998Specialized Health Products, Inc.Medical needle safety apparatus and methods
US5853393 *7 Jun 199529 Dic 1998Johnson & Johnson Medical, Inc.Catheter needle locking and catheter hub unlocking mechanism
US5951515 *7 Mar 199714 Sep 1999Becton, Dickinson And CompanyMedical needle guard for catheter placement
US6056726 *28 Feb 19952 May 2000Isaacson; Dennis RaySelf-contained safety intravenous catheter insertion device
US6117108 *12 Jun 199812 Sep 2000Braun Melsungen AgSpring clip safety IV catheter
US6234999 *18 Ene 200022 May 2001Becton, Dickinson And CompanyCompact needle shielding device
US6287278 *30 Oct 199811 Sep 2001B. Braun Melsungen, AgSpring dip safety IV catheter
US6322537 *30 Dic 199927 Nov 2001Ethicon, Inc.Safety intravenous catheter
US6443929 *31 Ago 19983 Sep 2002Injectimed, Inc.Needle tip guard for hypodermic needles
US6616630 *14 Ago 20009 Sep 2003B. Braun Melsungen A.G.Spring clip safety IV catheter
US6620136 *11 Feb 200016 Sep 2003Medsafe Technologies, LlcRetractable I-V catheter placement device
US6629959 *30 Abr 20017 Oct 2003Injectimed, Inc.Needle tip guard for percutaneous entry needles
US6641555 *10 Oct 20004 Nov 2003Mdc Investment Holdings, Inc.Fluid collection device with captured retractable needle
US6652486 *27 Sep 200125 Nov 2003Medex, Inc.Safety catheter
US6692471 *16 Feb 200117 Feb 2004Medex, Inc.Method and apparatus for safety catheter insertion device
US6702595 *10 Jun 20029 Mar 2004The Turo CompanyFuse clip for circuit boards
US6709419 *1 Dic 200023 Mar 2004B. Braun Melsungen AgShort catheter
US6749588 *21 Nov 200015 Jun 2004Becton Dickinson And CompanyCatheter and introducer needle assembly with needle shield
US6860871 *21 May 20031 Mar 2005Injectimed, Inc.Needle tip guard for percutaneous entry needles
US6981965 *31 Oct 20013 Ene 2006Luther Research Partners LlcUniversal passive protector for an IV catheter
US7018344 *21 Ene 200328 Mar 2006Becton, Dickinson And CompanyRetractable needle shielding device
US7097633 *1 Abr 200329 Ago 2006Mdc Investment Holdings, Inc.Fluid collection device with captured retractable needle
US7160269 *6 Ene 20069 Ene 2007B. Braun Melsungen AgShort catheter
US7186239 *13 Feb 20046 Mar 2007B. Braun Melsungen AgShort catheter
US7201740 *1 Jul 200410 Abr 2007Becton, Dickinson And CompanyForward-shielding blood collection set
US7214211 *26 Feb 20028 May 2007B. Braun Melsungen AgNeedle assembly with protective element
US7226434 *31 Oct 20035 Jun 2007Tyco Healthcare Group LpSafety shield
US7238169 *25 Feb 20053 Jul 2007Nipro CorporationSafety indwelling needle
US7264613 *23 May 20034 Sep 2007B. Braun Melsungen AgSpring clip safety IV catheter
US20020169418 *29 Mar 200214 Nov 2002Thomas MenziSafety spring catheter introducer assembly
US20030114797 *16 Dic 200219 Jun 2003Vaillancourt Vincent L.Safety needle with collapsible sheath
US20030144627 *20 Sep 200231 Jul 2003Kevin WoehrSpring launched needle safety clip
US20030167062 *5 Mar 20014 Sep 2003Gambale Richard ASuture clips,delivery devices and methods
US20030199827 *3 Jun 200323 Oct 2003Thorne David L.Passively activated safety shield for a catheter insertion needle
US20030228808 *10 Jun 200211 Dic 2003Nelson Arnold RayFuse clip for circuit boards
US20040010227 *14 May 200315 Ene 2004Hermann RiesenbergerSpring launched needle safety clip
US20040049155 *29 Abr 200311 Mar 2004Schramm John B.Needle tip protector
US20040162525 *6 Feb 200419 Ago 2004Vaillancourt Vincent L.Needle guard
US20040225260 *30 Jul 200211 Nov 2004Danilo VillaProtective device for a needle
US20040243061 *8 Abr 20032 Dic 2004Mcgurk Joseph P.Safety needle and catheter assembly
US20050027263 *12 Dic 20033 Feb 2005Kevin WoehrSpring clip safety IV catheter
US20050070855 *8 Nov 200431 Mar 2005Ferguson F MarkSafety shield for medical needles
US20050080378 *20 Jun 200314 Abr 2005Cindrich Christopher NMethod and apparatus for shielding the tip of a catheter introducer needle
US20050182362 *25 Ene 200518 Ago 2005Medex, Inc.Needle guards
US20060074384 *28 Sep 20046 Abr 2006Kohler Matthew EProtective clips
US20060116638 *5 Ene 20061 Jun 2006B. Braun Melsungen AgSpring clip safety IV catheter
US20060270980 *20 Jul 200630 Nov 2006B. Braun Melsungen A.G.Safety spring catheter introducer assembly
US20070038179 *8 Ago 200515 Feb 2007Bialecki Dennis MNeedle guard strut wall clip
US20070038182 *8 Ago 200515 Feb 2007Bialecki Dennis MNeedle guard mechanism with needle support
US20070038183 *8 Ago 200515 Feb 2007Bialecki Dennis MNeedle guard clip with stylus
US20070038184 *8 Ago 200515 Feb 2007Bialecki Dennis MNeedle guard clip with lip
US20070038185 *8 Ago 200515 Feb 2007Fuji Xerox Co., Ltd.Needle guard clip with heel
US20070038188 *8 Ago 200515 Feb 2007Bialecki Dennis MDuckbill catheter release mechanism
US20070073221 *8 Ago 200529 Mar 2007Bialecki Dennis MNeedle guard mechanism with leaf spring
US20070073222 *8 Ago 200529 Mar 2007Lilley Thomas F JrNeedle guard mechanism with angled strut wall
US20070129689 *23 Feb 20077 Jun 2007B. Braun Melsungen AgSpring clip safety iv catheter
US20070156093 *23 Feb 20075 Jul 2007B. Braun Melsungen AgShort catheter
US20070161950 *1 Nov 200412 Jul 2007Tyco Healthcare Group LpSafety shield
US20070179447 *2 Feb 20052 Ago 2007VygonDrooped hook device for placing a cannula in a vein
Otras citas
Referencia
1 *"Can anyone help me with sheet metal bending?" Post # 6, dated June 13, 2006. Retrieved from http://www.3dcadforums.com/solidworks-forum/448-can-anyone-help-me-sheet-metal-bending.html on January 28, 2015.
2 *"Popular Bender Options." Danly UK Limited. October 10, 2005.
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US88647143 Sep 200921 Oct 2014Becton, Dickinson And CompanyCatheter and introducer needle assembly with needle shield
US20040204681 *13 Ene 200414 Oct 2004Thoresen Stephen L.Catheter and introducer needle assembly with needle shield
US20110066107 *14 May 200917 Mar 2011John StephensNeedle protective device
US20110160671 *26 Mar 200930 Jun 2011Terumo Kabushiki KaishaIndwelling needle assembly
US20140364809 *4 Jun 201411 Dic 2014Becton, Dickinson And CompanyPorted iv catheter having external needle shield and internal blood control septum
US20160193453 *16 Ene 20157 Jul 2016Becton, Dickinson And CompanySafety intravenous catheter with friction-based retention and disabling feature
Clasificaciones
Clasificación de EE.UU.604/110, 604/508, 604/264
Clasificación internacionalA61M31/00, A61M5/00
Clasificación cooperativaA61M5/3275, A61M25/0606, A61M25/0625, A61M2005/325, A61M25/0637
Clasificación europeaA61M25/06D3, A61M25/06D1A, A61M25/06C
Eventos legales
FechaCódigoEventoDescripción
26 Feb 2008ASAssignment
Owner name: BECTON, DICKINSON AND COMPANY, NEW JERSEY
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:THORNE, JOHAN FREDRIK;LARSSON, LARS-AKE LENNART;GLOWACKI, KRISTOFFER;AND OTHERS;REEL/FRAME:020558/0045;SIGNING DATES FROM 20080112 TO 20080116
Owner name: BECTON, DICKINSON AND COMPANY, NEW JERSEY
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:THORNE, JOHAN FREDRIK;LARSSON, LARS-AKE LENNART;GLOWACKI, KRISTOFFER;AND OTHERS;SIGNING DATES FROM 20080112 TO 20080116;REEL/FRAME:020558/0045